Taos County, Colorado GenealogyEdit This Page

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For a map of New Mexico Territory in 1852, click here.

United States Gotoarrow.png Colorado Gotoarrow.png Taos County

The southern part of present-day Colorado east of the Continental Divide, that is parts of Archuleta, Conejos, Rio Grande, Mineral, Hinsdale, San Juan, Saguache, Alamosa, Costilla, Los Animas, Huerfano, Custer, Pueblo, Otero, Bent, and extreme western edge of Baca counties were northern part of Taos County, New Mexico Territory from its creation in New Mexico Territory in 1852 until 1861 when it was one of the four pieces of other territories used to create the new Colorado Territory.[1] [2] [3]

  • 1852 Taos County, New Mexico Territory created as an original county from an old Mexican partido. In theory it extended west to the California border including parts of Arizona and later Nevada[4][5]
  • 1 February 1860 Mora County, New Mexico Territory was erected from the eastern part of Taos County.[3]
  • 28 February 1861 The northern parts of Taos and Mora counties, formerly New Mexico Territory, were transferred to the newly created Colorado Territory.[6]
Colorado 1860 map.png
A few of the earliest settlers in what is now southern Colorado may have conducted their county business in Taos via the Santa Fe Trail. For records of residents from 1852 to 1861 in what later became southern Colorado check Taos County, New Mexico records. From 1 February 1860 to 1861 also check records of Mora County, New Mexico. After 28 February 1861 search the appropriate Colorado counties.


  1. Compare 1852 and 1854 maps.
  2. John Koontz, Political History of Nevada, 5th ed. (Carson City, Nev.: SPO, 1965), 37-98. At various libraries (WorldCat). FHL Book 979.3 N2k
  3. 3.0 3.1 Handybook for Genealogists: United States of America, 9th ed. (Logan, Utah: Everton Pub., 1999), 274. At various libraries (WorldCat); FHL Book 973 D27e 1999.
  4. Wikipedia contributors, "Taos County, New Mexico" in Wikipedia: the Free Encyclopedia at http://en.wikipedia.org/wiki/Taos_County,_New_Mexico (accessed 8 August 2011).
  5. Original Counties of New Mexico Territory (map) at http://www.nmgs.org/Graphics/nmcoun-orig.jpg (accessed 9 August 2011).
  6. Wikipedia contributors, "Colorado Territory" in Wikipedia: the Free Encyclopeida at http://en.wikipedia.org/wiki/Colorado_Territory (accessed 19 June 2012).


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